Temperature Transmitter MTM4831 Series

Introduction

The Temperature Transmitter MTM4831 Series is a cutting-edge device designed for precise and reliable temperature measurement across a variety of industrial applications. With the ability to measure temperatures ranging from -200°C to 1200°C, this versatile transmitter is ideal for use in industries such as petroleum, chemical processing, metallurgy, power stations, and light industry. Featuring advanced technology for linearity correction and multiple output signals, the MTM4831 is engineered to meet the demanding needs of modern industrial environments.

Key Features

The MTM4831 Temperature Transmitter is packed with features that make it a top choice for industrial temperature measurement:

• Wide Temperature Range: Capable of measuring temperatures from -200°C to 1200°C, suitable for various applications.
• Certifications: Fully certified with EXIA, EXD, CCS, and CE, ensuring compliance with international safety and quality standards.
• Compact and Easy to Install: Its compact design allows for easy installation, even in space-constrained environments.
• Adjustable Settings: Zero and span adjustments enable fine-tuning for precise measurements.
• Optional Local Display: Choose between an LCD or LED display for real-time monitoring.
• Multiple Output Signals: Flexible output options including 4mA to 20mA DC, HART, and RS485 ensure compatibility with various systems.
• Field Configurable: Conveniently configure the transmitter on-site to suit specific application needs.

Sensor Specifications

The MTM4831 series is equipped with high-accuracy sensors, tailored for different temperature ranges and applications:

• PT100 Thermal Resistance:

• Temperature Range: -200°C to 500°C

• Accuracy Classes:

• AA: ±(0.1 + 0.0017|t|) for 0°C to 100°C (thin film) and -50°C to 200°C (wire-wound)

• A: ±(0.15 + 0.002|t|) for -50°C to 300°C

• B: ±(0.3 + 0.005|t|) for -200°C to 500°C

• PT1000 Thermal Resistance:

• Temperature Range: -50°C to 200°C

• Accuracy Classes:

• A: ±(0.15 + 0.002|t|)

• B: ±(0.3 + 0.005|t|)

• K-Type Thermocouple:

• Temperature Range: -40°C to 1200°C

• Accuracy Classes:

• I: ±1.5°C up to 375°C, ±0.004 Itl for 375°C to 1000°C
• II: ±2.5°C up to 333°C, ±0.0075 Itl for 333°C to 1200°C

Electrical and Environmental Specifications

The MTM4831 is designed for durability and reliable operation in challenging environments:

• Power Supply: 10V to 30V DC (typical: 24V DC), with 15V to 30V DC for display versions.
• Output Options: Includes 4mA to 20mA DC, HART, RS485, and more, ensuring broad compatibility.
• Accuracy: Available in ±1.0%FS, ±0.5°C, and ±0.25°C, depending on your application.
• Operating Conditions:

• Ambient Temperature: -25°C to 70°C

• Relative Humidity: Less than 95%

• Storage Temperature: -40°C to 120°C

• Weight: Approximately 1100g, making it a solid yet manageable component.
• Explosion Proof: Certified for Exia IIC T6 Ga and Ex d IIB T6 Gb environments.

Construction Materials

The MTM4831 is built with high-quality materials to ensure long-lasting performance:

• Housing: Made from durable aluminum alloy, providing protection against harsh industrial conditions.
• Media Wetted Parts: Available in 304 stainless steel as standard, with 316 stainless steel or other materials available upon request.
• Display Window: Constructed with flameproof glass for enhanced safety.

EMC and Environmental Compliance

This transmitter meets rigorous standards for electromagnetic compatibility (EMC), ensuring reliable performance even in electrically noisy environments:

• Conducted Disturbance: Meets GD22-2015 3.2 and CISPR 16-2-1 standards.
• Radiated Disturbance: Complies with GD22-2015 3.3 and CISPR 16-2-3.
• Electrostatic Discharge Immunity: Tested to 4kV (contact) and 8kV (air) per GB/T 17626.2/IEC 61000-4-2.

Ordering Information

Customize your MTM4831 Temperature Transmitter to fit your exact needs by selecting from the following options:

• Temperature Range: Choose from -200°C to 500°C (PT100), -50°C to 200°C (PT1000), or -40°C to 1200°C (K Type).
• Accuracy: Available in ±1.0%FS, ±0.5%FS, and ±0.25%FS.
• Output Signal: Select from 4mA to 20mA DC, HART, RS485, etc.
• Protection Pipe Diameter: Options include φ6, φ8, φ12, φ16, and combinations of inner and outer pipes.
• Installation Method: Various thread and flange installation options available.
• Wetted Part Material: Default is SS304, with SS316L and PTFE sleeve options.
• Display Type: Choose between LCD, LED, or no display.
• Explosion Protection: Options include Exia, Exd, and CCS.
• Cooling Pipe Length: Select based on the required application temperature range.

Cable and Probe Fixing Methods: Various options to suit specific installation environments.

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